Atomizer-valve.



FRITZ von DHN,

sauras Parana omiten.

ATOMIZERFVALVE.

Specication of Letters Patent.

To'all whom, t mag/concern.' f

Be it known that I, FRITZ v. DHN', acitizen of Berlin, State of Prussia,Germany, have invented a new and useful Atomizei`- Valve, of whichthefollow'ing is a specilicati'on. My invention relates to improvementsin portable atomizers, in which a plunger-valve serves for the passageof compressed air,

-that enables the operator. to. regulate instan- `taneously at will withthe same hand that holds the apparatus, the main compressed its inflowinto the vessel over the Inaerial, y,as well as its oHtHoW, in order tochange during the atomizing process the jet of the atomized material,its density, quantity, .&'c.2 and that enables the operator also toatomize the 'material either by suction` alone or by the combined actionof suction andwdirect pressure upon the surface of the material. Iattain these objects by the de'- sign illustrated in the accompanyingdrawv d' L sections of the atomizer-valve in diii'erent ing, wheiein-Figure 1 is a vertical section of the entire paint-atomizer. Figs. 2; 3and 4 are vertical positions.

Similar numerals refer to similar parts throughout the several views.

The paint-vessel is shown at 1 with cover l2, thus arranged as to makethe closure air- 'tight.

3 is the discharge nozzle, that receives through ythe tube 13 thecompressed air, necessary for the atomizing.

' 4 .is` the vtube through which the material has to pass; 5 the usualhandle; 6 a regula-ting stop-screw; 7 the thumb-piece, and 8 the`vfalve-rod surrounded vby a coiled spring and closely connected with thesliding plun# vger-va1ve; it canbev workedby the users 'thumb. Thus farthe apparatus is already known and forms no partvof my invention. A Myatomizer-valve'serves for the purposes' already stated; it consists ofthe `valve-case `16 and the hollow-plunger-valve 9 with the `fourplungers 101, 102,103 and 104, the c'utpressed air, the inflow ofcompressed air into y the vessel and the outflow. Through pressure uponthe thumb-piece 7 the f` hollow plunger-valve with the plungersslidesfor` ward. In thevalve-case 16 is a small tubecase 17 inserted,through which the valve,-

rod 8 passes; and in which also a coiled spring serves for thereturn-movement. Valve-rod S is closely joined with 9. The operation ofmy atomizervalve is as follows: Fig. 1.' The compressed 4air enters theair tube 13; the pluhger 103, being in closed position, cuts oit theflow4 ofair Patented-July 1, 1913. `Application filed November 9, 1910.i Seria'l No. 591,528. v

intotheapparatus. The atomizer does not spray. Fig. 2 shows theatomizer-valve in al position, where the compressed air passes throughthe air-`tube 13, then through the cut-out 11 through the hollowplunger-valve 9 and to' the discharge nozzle in orderv to atomize thematerial. A-partqof the compressed air passes through the hole 12 andtube 14 into `the paint-vessel over the ma# terial, in order to force itthrough the tube 4. A part of this compressed airescapes again throughthe tube l5 .outof the vessel.

The plunger-101 prevents the escape of compressed air through the tube15. The appa'- ratussprays by suction and pressure uponthematerial-'half thick. F ig. 3. The positionof the atomizerfvalvepermits, the compressed air to pass fully through the tube 13,

the cut-out `11, the hollow l,plunger-valve .9 and part of thecorr'lpressedl air through. thetube 14 'into' the paint-vessel over thematerial. The tube 15 is closed by theplunger sprays co-arseand 'thiclnFig. 4 shows the 10. The'whole compressed air presses upon thematerialin the vessel.l The apparatus air tube 13 one half closed`by'the plunger 103the plunger 10m closes the tube 14,thu`s preventingthe iniiow of compressed air into the paint-Vessel over the material.;the plunf ger 10,'i closes also not fully theair-escapetube 15. In thisposition. of the atdmizervalve the apparatus sprays only by suction nearthe Aorice of the nozzle. All these different positions of theatomiz'er-valve 9 are obtained by inward pressure with the operatorshand upon the thumb-piece 7 in order to relea-se the compressed air gtheV return 'movement of the valve..9 for shutting olf the compressedair is automatic. it is evident, that the operator is in no Way bound toany of these positions, but that he can change them at will toall'positions between those shown in the drawings, during the atomizingprocess.

Various changes may be made in partso this device without departing fromthe scope of my invention, and I do not limit myself to the detailsherein shown and de- What l claim, is: An atomizer apparatus comprisinga res-- ervoir7 an atomizer valve in top of the reserplunger movablethrough said casing, an air' supply tube connected to said valve casinga tube leading from said v alve casing to said reservoir and a tubepassing Jfrom said resy ervoir to said valve casing and to the eX`ternal air, said hollow plunger having a cut out adapted to registerwith said air supply pipe and an aperture' adapted to register with saidsecond tube, a thumb piece secured to one end of said hollow plunger,four plungers secured to and closing the space between 'said hollowplunger and said valve casing, the l'rst plunger located at the en d ofsaid hollow plunger opposite the thumb piece, the second plunger beingadapted to open andpclose the tube passing from said reser- Voir to saidvalve casing and the external air, and the tube leading' from saidYvalve easing to said reservoir, the third plunger being adapted t0 openor close the air supply pipe, and the last named plunger l0- cated atthe end of said hollow plunger next to the thumb piece.

In testimony whereof I affix my signature in presence of two witnesses.

FRITZ vos DHN.

Witnesses: A i HENRY Hesrmi, WOLDEMAR

